CN103411826A - Zero damage multifunctional steel wire rope tension tester fixture - Google Patents
Zero damage multifunctional steel wire rope tension tester fixture Download PDFInfo
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- CN103411826A CN103411826A CN2013103481032A CN201310348103A CN103411826A CN 103411826 A CN103411826 A CN 103411826A CN 2013103481032 A CN2013103481032 A CN 2013103481032A CN 201310348103 A CN201310348103 A CN 201310348103A CN 103411826 A CN103411826 A CN 103411826A
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Abstract
The invention particularly discloses a zero damage multifunctional steel wire rope tension tester fixture which comprises a base, wherein at least one movable clamping jaw opening driven by an air cylinder is formed in the base; at least one fixed clamping jaw opening is formed in the base; an S-shaped gap shaped like a circular tube and used for enabling a steel wire rope to penetrate through is formed between the movable clamping jaw opening and the fixed clamping jaw opening. The fixture can realize zero fracture random sampling on-line tensile test of the steel wire rope and provides valid guarantee for safe use of the entire coil of steel wire rope. The fixture can realize zero damage clamping of a flexible body under the condition of larger tension, can perform random on-line tensile test of the steel wire rope, and can guarantee safety tension test of the steel wire rope at any unwinding section.
Description
Technical field
The present invention relates to a kind of not damaged multifunctional steel wire rope tension grip of testing machine, this fixture can realize that the wire rope maximum load is the not damaged tension test of 800kN.
Background technology
According to GB/T8358-2006 " breaking tensile test of rope method ", the method for chucking of wire rope test specimen is had to four kinds: cover platen press, casting method, directly chucking method and winding method.The above method all adopts the sampling Detection method, both on existing whole-root rope basis, intercepts one section, carries out disrumpent feelings tension test.This test is that process of the test prevents whether loosening slippage from appearring in test specimen chucking position, sustain damage and do not explicitly call for for test specimen chucking position for the requirement of two ends clamp body.These class methods are applicable to detection and the examination of new rope, yet for used wire rope, difference may appear in the performance at middle part and fag end position, from the fag end sampling, will be no longer representative, and will bring damaging influence to rope from the middle sampling of restricting.
Current domestic electric power construction is used a large amount of wire rope, and such rope is for left and right ordinary lay programming structure, stretches after stressed to have to prevent turning round function, widespread use in the lead wire and earth wire construction under tension stringing.Because such rope environment for use is severe, stressed complexity, on-the-spot use procedure very easily causes yarn, rope silk wear and rupture.Such rope returns behind warehouse and is coiling and deposits, and how to take a kind of rational method to launch wire rope and carries out whole process monitoring, and online random tension test is domestic and international also ready-made testing machine solution.
According to the power construction safety work order, Electric Power Construction Enterprises every year need to be to stringing with preventing that turning round wire rope carries out 2 times of safe load tensile tests, to detect such rope, whether can continue safe handling, qualified rear wire rope still can come into operation after testing.Such test, for safety examination, does not belong to destructive test.One of method of constituent parts employing at present is to use for reference the disrumpent feelings property of wire rope tensile test method, the test of the sampling section of getting.Mostly in actual applications is near the fag end sampling, sampling limitation problem occurred.These class methods have been destroyed the integrality of whole rope simultaneously, and the fag end shank is processed and with great difficulty do not brought hidden danger, deviates from mutually with the purpose of property safety period check.Some units also adopt one section wire rope of steel wire clamp chucking to carry out tension test, and this kind method has realized online test objective, still, for the wire rope of cheese inside, owing to can't effectively launching, cause detecting and can't realize.Steel wire clamp Lack of support simultaneously, fully do not hold tactilely to the wire rope surface, process of the test easily causes secondary extrusion to steel wire.
For lineoutofservice signal pull test, be mainly to adopt the wire rope unit clamp to carry out in conjunction with tension tester at present, present stage is divided achievement about the research of lineoutofservice signal pull testing machine and fixture thereof obtaining section.
In patent (CN 201120404556.9), disclose a kind of overall breaking force of steel wire rope test and be wound around fixture; This patent is wrapped in the two ends of steel cable on large rope sheave through test fixture, and fag end is penetrated in large rope sheave, utilizes the fixture fixed pin directly with the jaw of common tension tester, to be connected, and implements to stretch.This fixture just is suitable for intercepting one section wire rope and carries out the rupture pull force test, can not realize whole spooling at random the section of getting carry out nondestructive safety on line test, and wire rope must be wrapped on rope sheave by whole circle, especially for generous wire-diameter steel rope, test operation complexity.
In patent (CN 201120541577.5), openly carried out a kind of breaking force of rope test fixture, this patent in process of the test by wirerope-winding in winding groove, by manually screwing bolt, nut compression steel wire rope head, reach the fixedly purpose of wire rope, and then carry out the rupture pull force test of wire rope.This patent equally just is suitable for intercepting one section wire rope and carries out the rupture pull force test, can not realize whole spooling at random the section of getting carry out nondestructive safety on line test, and be wound around and clamp the dependence manually-operated, efficiency is lower, clamps stable not.
A kind of lineoutofservice signal pull grip of testing machine is disclosed in patent (CN 201210297986.4), expanding force when this patent is born the wire rope sample tensile test by the orienting lug arc-shaped slot on upper and lower fixture, make the wire rope sample fracture in centre position, avoided the wire rope broken end to appear at retaining part and make the problem of test failure.This patent still just is suitable for intercepting one section wire rope and carries out the rupture pull force test, mainly is suitable for tensile test micro-, thin shaped steel wire rope.
From current literature retrieval, learn, also test is studied to breaking force of rope for more domestic scholars and scientific research personnel, has proposed multiple test fixture, and has carried out some improvement in conjunction with flexible body exemplar characteristics.
In document " improvement of material pull-test machine holder structure ", disclose a kind of method to compression after thin flexible body employing winding and carried out material tensile test, document analysis the structure of tinsel dedicated workholder, rubber " V " type tape gripper and eccentric wheel clamper, and improve for the problem that these clampers exist.It is the material tensile test of 10KN that the method only is applicable to load, and is the test of the section of getting rupture pull force.
Document " development of horizontal tensile testing machine and wire rope stretching test method are inquired into " has carried out development and the research of wire rope stretching test method of horizontal tensile testing machine for the disrumpent feelings tension test of wire rope, introduced respectively the preparation of casting, winding, gland and direct chucking method wire rope sample and attached pattern.
In sum, at present domestic tensile test about wire rope is mainly reflected in the intercepting termination and carries out off-line tensile test aspect; And for the tensile test method of wire rope, its patent and document achievement also many casting methods, winding method, gland method and direct clamp methods of adopting are separately carried out.For total length force type wire rope intercepting termination, carry out the true safety case that the off-line tensile test can not the objective evaluation wire rope, four kinds of fixture test methods that industry standard is recommended also are the off-line testing that is suitable for taking a sample, and the safety testing larger for pulling force often produces damage to bare terminal end.According to the current lineoutofservice signal pull test fixture of data-searching, only have a simple function in addition.Therefore, a kind of not damaged multifunctional pull test fixture that is suitable for wire rope and attaches of development research, have important engineering significance and theory value.
Summary of the invention
Purpose of the present invention is exactly for above-mentioned deficiency of the prior art, and a kind of stretching fixture that is applicable to wire rope and attaches is provided.This fixture can be realized the not damaged clamping of wire rope, coordinates tension tester can carry out online tensile test, and can carry out that wire rope connects by the security tensile test of U-shaped ring etc.
The technical solution used in the present invention is as follows:
A kind of not damaged multifunctional steel wire rope tension grip of testing machine, comprise a base, at least one moving clamping claw by air cylinder driven is installed with at least one, is fixed on the clamp tool jaw on base on described base, described moving clamping claw and the S type space of determining to form between clamping claw the tubular that supplies steel wire penetrating.
Described clamp tool jaw comprises a thick axle of pier, and a winding wheel is installed on the thick axle of described pier, and there is the circular arc concave groove coordinated with wire rope in described winding wheel cross section.
Described moving fixture cross section integral body is the convex of S type.After moving fixture and the combination of clamp tool, form the curved space of similar tubular.
Described moving clamping claw is connected with web member I by pin I, and the piston rod of hydraulic cylinder is connected to web member I by two semicircle flanges, screws and goes up, and realizes connecting of piston rod and moving clamping claw.
One side of described base is equipped with row's drawing mechanism, comprise connecting link I, connecting link II, described connecting link I mono-end is connected with base by pin II, and the other end is threaded with adapter sleeve, and described adapter sleeve is connected with connecting link II by pin III, described connecting link II is provided with at least one pull bar be connected with U-shaped ring, described pull bar is connected with connecting link II by an end pin VI, and the other end connects a roller, and described roller is connected with U-shaped ring.
The invention has the beneficial effects as follows:
(1) research and develop in a creative way a kind of lineoutofservice signal pull test method that wound form is clamped to the combination of peace pushing clamping method, realized the wire rope nondestructive tensile test.This fixture has fully absorbed existing winding method and direct chucking method new application, and carries out on this basis organic integration, has formed winding clamping method, has realized the harmless clamping of the large pulling force security of flexible body at thread test.Wherein, winding wheel takes full advantage of increases contact area on effective length, and does not damage the theory of wire rope, the S type bending of wire rope, effectively strengthened holding of wire rope touched to area and length, improved the stiction to wire rope in identical friction material and snap-in force situation.Wire rope through repeatedly crooked, produces the friction pulley skin-friction effect in the space that the moving fixture of winding wheel and S type forms, friction force progressively decays, and moving fixture horizontal sliding snap-in force is corresponding can reduce, and can effectively reduce the compression damage to wire rope.Be wound around chucking method and with technical, realized breakthrough in method, proposed a kind of wire rope to innovation and can't harm pulling force check test method.
(2) based on the not damaged clamping of flexible body, can realize the online tensile test of not disrumpent feelings grab sample of wire rope, to checking whole spooling to use safely, provide effective guarantee.Test shows that this fixture can realize that the wire rope maximum load is the online tension test of not damaged of 800kN, and is suitable for all kinds of wire rope that Fang Jing is 15-30mm, has ensured the security tensile test that wire rope falls at any spread.
(3) band of research and development row draws the comprehensive fixture of function to realize tension tester one tool multi-purpose function.The Duola head unit of row in drawing mechanism, can carry out the stretchings of the U-shaped ring of 4 row's series connection simultaneously, in the situation that tension test when clamper for disassembling does not complete a plurality of U-shaped ring, realized a tool multi-purpose function of tension tester.
The accompanying drawing explanation
Fig. 1 integral body of the present invention is overlooked mechanism map;
Fig. 2 A-A cut-open view of the present invention;
Fig. 3 B-B cut-open view of the present invention;
1 joint bolt in figure, 2 bases, 3 pull bars, 4 hydraulic cylinders, 5 semicircle flanges, 6 screws, 7 web members, 8 pin I, 9 moving clamping claws, 10 winding wheels, the thick axle of 11 pier, 12 draw-bar seat 13 threaded 14 wire rope V-type locating piece 15 pin II, 16 connecting link I, 17 adapter sleeves, 18 pin III, 19 pull bars, 20 pin VI, 21 rollers, 22 connecting link II, 23 U-shaped rings.
Embodiment
The present invention relates to a kind of Special flexible body clamping of winding wheel and directly chucking method combination and tension test multifunctional pull test fixture of U-shaped ring of utilizing, this fixture can realize that the not damaged of elongated class flexible body clamps and cable stretch sets up the tension test with a plurality of U-shaped rings, provides effective guarantee for carrying out the random online tension test of wire rope.
As shown in Figure 1 and Figure 2, it mainly is comprised of joint bolt 1, base 2, pull bar 3, hydraulic cylinder 4, two semicircle flanges 5, screw 6, web member 7, pin 8, moving clamping claw 9, winding wheel 10, the thick axle 11 of pier, draw-bar seat 12, attachment pegs 13, wire rope V-type locating piece 14 etc. clamp forceps notch portion structure.Winding wheel 10 is fixed on base 2 by the thick axle 11 of pier and the threaded identical with attachment pegs 13, the moving clamping claw 9 of S type is connected with web member 7 by pin I8, the piston rod of hydraulic cylinder 4 is connected on web member 7 by two semicircle flanges 5, screw 6, realizes that piston rod moves connecting of clamping claw 9 with the S type; Pull bar 3 is connected on two draw-bar seats 12, forms semi-closed state, to improve the rigidity of fixture.There is the circular arc matrix in winding wheel cross section as clamp tool jaw, and moving fixture cross section integral body is S curve convex, after moving fixture and stationary fixture combination, forms the curved space of similar tubular.When wire rope entered jaw, movable clamp port moved matched moulds under the horizontal sliding campaign effect of hydraulic cylinder 4, realized the clamping of the wire rope of coiling and clamping combination.Because jaw consists of one group of winding wheel and S type movable clamp port, wire rope is repeatedly crooked coiling therein, produces the friction pulley skin-friction effect, and the method has embodied the winding method of lineoutofservice signal pull test; And movable clamp port clamping steel wire rope under the driving of hydraulic cylinder 4 has embodied the direct chucking method that lineoutofservice signal pull is tested.Because crooked coiling has repeatedly produced larger friction force, in same tensile force situation, the direct clamping of the relative flat mouth of clamping force now will be dwindled greatly.Therefore, integrated winding method and the direct winding chucking method of chucking method, can realize the harmless tensile test of wire rope, and on-the-spot 800KN tensile test sufficient proof the validity of the method.This clamp structure can coordinate the expansion of coiling wire rope, cleaning, care device, and the online tensile test of wire rope is carried out in not disrumpent feelings grab sample, realizes the complete monitoring to whole spooling security.
Carry out row's pull-up structure of U-shaped ring safety test as shown in Figure 3, it mainly is comprised of pin II15, connecting link I16, adapter sleeve 17, pin III18, pull bar 19, pin IV20, roller 21 etc.Connecting link 16 is connected with fixture by pin II15, adapter sleeve 17 is connected by screw thread with connecting link I 16, roller 21 is for connecting the roller of tested U-shaped ring 23, it is connected on pull bar 19 by pin 20, pull bar 19 is connected on connecting link II 22, and connecting link II is connected with connecting link I's 16 by pin III18, adapter sleeve 17 realizations.In this row's drawing mechanism, have and on connecting link II 22, be connected with 4 pull heads, each pull head can be realized the connection of the U-shaped ring 23 of a string series connection, four pull heads can be realized the stretching of the U-shaped ring of 4 row's series connection simultaneously, the fine setting of its 4 tensile elongations can be passed through the threaded adjusting of pull bar 19 ends, tension test when can realize a plurality of U-shaped ring thus.
Claims (5)
1. not damaged multifunctional steel wire rope tension grip of testing machine, comprise a base, it is characterized in that: at least one moving clamping claw by air cylinder driven is installed with at least one, is fixed on the clamp tool jaw on base on described base, described moving clamping claw and the S type space of determining to form between clamping claw the tubular that supplies steel wire penetrating.
2. fixture as claimed in claim 1, it is characterized in that: described clamp tool jaw comprises a thick axle of pier, and a winding wheel is installed on the thick axle of described pier, there is the circular arc concave groove coordinated with wire rope in described winding wheel cross section.
3. fixture as claimed in claim 1 is characterized in that: described moving fixture cross section is whole is the convex of S type.
4. fixture as claimed in claim 1 is characterized in that: described moving clamping claw is connected with web member I by pin I, and the piston rod of hydraulic cylinder is connected on web member I by two semicircle flanges, screws.
5. fixture as claimed in claim 1, it is characterized in that: a side of described base is equipped with row's drawing mechanism, comprise connecting link I, connecting link II, described connecting link I mono-end is connected with base by pin II, the other end is threaded with adapter sleeve, described adapter sleeve is connected with connecting link II by pin III, described connecting link II is provided with at least one pull bar be connected with U-shaped ring, described pull bar is connected with connecting link II by an end pin VI, the other end connects a roller, and described roller is connected with U-shaped ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310348103.2A CN103411826B (en) | 2013-08-09 | 2013-08-09 | Zero damage multifunctional steel wire rope tension tester fixture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310348103.2A CN103411826B (en) | 2013-08-09 | 2013-08-09 | Zero damage multifunctional steel wire rope tension tester fixture |
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| Publication Number | Publication Date |
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| CN103411826A true CN103411826A (en) | 2013-11-27 |
| CN103411826B CN103411826B (en) | 2015-05-27 |
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| CN201310348103.2A Expired - Fee Related CN103411826B (en) | 2013-08-09 | 2013-08-09 | Zero damage multifunctional steel wire rope tension tester fixture |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104913973A (en) * | 2015-07-04 | 2015-09-16 | 北京亨通斯博通讯科技有限公司 | Fixture for cable inspection equipment |
| CN105699183A (en) * | 2016-03-14 | 2016-06-22 | 镇江市建科工程质量检测中心有限公司 | Safety rope breaking strength detection fixture and tester |
| CN107356476A (en) * | 2017-08-22 | 2017-11-17 | 苏交科集团股份有限公司 | A kind of polypropylene rope detects fixture |
| CN111060395A (en) * | 2019-11-18 | 2020-04-24 | 太仓市林源电线电缆有限公司 | High-performance withstand voltage detection device for electrical copper wire and working method thereof |
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| CN203405377U (en) * | 2013-08-09 | 2014-01-22 | 济南大学 | Clamp of nondestructive multifunctional steel wire rope tension tester |
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2013
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| CN102095634A (en) * | 2010-11-26 | 2011-06-15 | 中国船舶重工集团公司第七○二研究所 | Whole-rope powerless winding and clamping device of wire rope |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913973A (en) * | 2015-07-04 | 2015-09-16 | 北京亨通斯博通讯科技有限公司 | Fixture for cable inspection equipment |
| CN105699183A (en) * | 2016-03-14 | 2016-06-22 | 镇江市建科工程质量检测中心有限公司 | Safety rope breaking strength detection fixture and tester |
| CN105699183B (en) * | 2016-03-14 | 2018-04-10 | 镇江市建科工程质量检测中心有限公司 | A kind of safety rope ultimate strength detection fixture and testing machine |
| CN107356476A (en) * | 2017-08-22 | 2017-11-17 | 苏交科集团股份有限公司 | A kind of polypropylene rope detects fixture |
| CN111060395A (en) * | 2019-11-18 | 2020-04-24 | 太仓市林源电线电缆有限公司 | High-performance withstand voltage detection device for electrical copper wire and working method thereof |
| CN111060395B (en) * | 2019-11-18 | 2022-06-28 | 太仓市林源电线电缆有限公司 | High-performance withstand voltage detection device for electrical copper wire and working method thereof |
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| CN103411826B (en) | 2015-05-27 |
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